Topp, Rebekka (Date of defense: 2002-07-19)
This work consists of two parts, both related with regression analysis for interval censored data. Interval censored data x have the property that their value cannot be observed exactly but only the ...
López Ramos, Francisco (Date of defense: 2014-02-24)
This thesis develops mathematical programming models which integrate network design (ND) and line frequency setting (LFS) phases. These appear in transport planning studies that extend an existing urban ...
Linares Herreros, Mª Paz (Date of defense: 2014-04-24)
In terms of sustainability, traffic is currently a significant challenge for urban areas, where the pollution, congestion and accidents are negative externalities which have strongly impacted the health ...
Lamberti, Giuseppe (Date of defense: 2015-06-22)
When collecting survey data for a specific study it is usual to have some background information, in the form for example, of socio-demographic variables. In our context, these variables may be useful ...
Serrat i Piè, Carles (Date of defense: 2001-05-21)
En aquest treball tractem tres metodologies diferents -no paramètrica, paramètrica i semiparamètrica- per tal de considerar els patrons de dades amb valors no observats en un context d'anàlisi de la ...
Martínez Martínez, José (Date of defense: 2006-07-25)
Aquesta tesi està formada per dues parts relacionades amb l'estudi de la salut d'una regió geogràfica dividida en un conjunt de zones (àrees petites). La primera part es basa en un estudi amb informació ...
Porta Bleda, Núria (Date of defense: 2010-07-27)
Aquesta tesi tracta sobre tècniques d'anàlisi de supervivència en situacions amb múltiples esdeveniments i patrons complexes de censura. Proposem una nova metodologia per tractar la situació de riscos ...
Calle, M. Luz (Date of defense: 1997-02-27)
This work concerns some problems in the area of survival analysis that arise in real clinical or epidemiological studies. In particular, we approach the problem of estimating the survival function based ...
López Segovia, Lucas (Date of defense: 2014-06-10)
The research developed in this thesis has been motivated by two datasets, which are introduced in Chapter 2, one concerning the mortality of calves from birth to weaning while the other refers to survival ...
Graffelman, Jan (Date of defense: 2000-09-12)
The thesis parts from the view that statistics starts with data, and starts by introducing the data sets studied: marine benthic species counts and chemical measurements made at a set of sites in the ...